﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp1
{//父类  共有1，名字 
    class Father
    {
        public string Name { get; set; }

        public Father() { }
        public Father(string name)
        {
            this.Name = name;
        }

        public virtual string chuquan()
        {

            return null;
        }
        

    }
}
